Running a basic 12.0 UCM/IMP & latest 8.11.2 EXP-C/EXP-E. All these servers are in a cluster (2 node UCM, 2 node IMP, 2 node C, 2 node E)
Verified clients can log in via Jabber with SSO on prem to UCM/IMP.
Expressway works via LDAP for Jabber clien...